[pageheader] Avoid notice

irc/irc.php

@@ -56,11 +56,11 @@ function irc_addon_settings_post(&$a, &$b) {
 	if(!local_user())
 		return;
 
-	if(!empty($_POST['irc-submit']) &&  $_POST['irc-submit']) {
-		if (!isset($_POST['autochans'])) {
+	if(!empty($_POST['irc-submit'])) {
+		if (isset($_POST['autochans'])) {
 			PConfig::set(local_user(), 'irc', 'autochans', trim(($_POST['autochans'])));
 		}
-		if (!isset($_POST['sitechats'])) {
+		if (isset($_POST['sitechats'])) {
 			PConfig::set(local_user(), 'irc', 'sitechats', trim($_POST['sitechats']));
 		}
 		/* upid pop-up thing */

pageheader/pageheader.php

@@ -7,7 +7,7 @@
  *         Hauke Altmann <https://snarl.de/profile/tugelblend>
  * 
  */
-use Friendica\Core\Addon;
+
 use Friendica\Core\Config;
 use Friendica\Core\Hook;
 use Friendica\Core\L10n;
@@ -66,8 +66,10 @@ function pageheader_addon_settings_post(&$a,&$b) {
 	if(! is_site_admin())
 		return;
 
-	if($_POST['pageheader-submit']) {
-		Config::set('pageheader','text',trim(strip_tags($_POST['pageheader-words'])));
+	if(!empty($_POST['pageheader-submit'])) {
+		if (isset($_POST['pageheader-words'])) {
+			Config::set('pageheader', 'text', trim(strip_tags($_POST['pageheader-words'])));
+		}
 		info(L10n::t('pageheader Settings saved.') . EOL);
 	}
 }